Do not use phentermine if you are pregnant or breast-feeding a baby. You should not use phentermine if you have glaucoma, overactive thyroid, severe heart problems, uncontrolled high blood pressure, advanced coronary artery disease, extreme agitation, or a history of drug abuse. Do not use this medicine if you have used an MAO inhibitor in the past...

You should not use phentermine if you are allergic to it, or if you have: 1. a history of heart disease (coronary artery disease, heart rhythm problems, congestive heart failure, stroke); 2. severe or uncontrolled high blood pressure; 3. overactive thyroid; 4. glaucoma; 5. extreme agitation or nervousness; 6. a history of drug abuse; or 7. if you t...

Take phentermine exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Doses are normally taken before breakfast, or 1 to 2 hours after breakfast. Follow your doctor's dosing instructions very carefully. Never use ph...